Self-measuring pump.



C. P. HATMAKER. SELF MEASURING PUMP. APPLICATION FILED SBPT.15,`1908.

Patented Apr.5,1910.

Z SHEETS--SHEET 1.

C. iP. HATMAKER. SELF MEASURING PUMP.

APELIOATION FILED smT. 15, 1908.

.Patented Apr. 5 i910 y 2 SHEETB--SHBBT '2.

UNirnn i skiing j CHARLES r. HATMANEIL or NEW YORK, N. Y., -nssIGNoRTo/GILBEnT-van BARKEN`--J MANUFACTURING coMrANY, A CORPORATION orMAssneHusETafsl.

SELFLMEASURING PUMP.

description. l

section through the movement of the discharging means.

operating handle.

comprises an improved formpf double Be it known that I, CHARLES F. HAT-MAKER, a citizenv of the United States, residing at New York, York andState of New York, have inventedcertain new and useful Improvementsf inSelf-Measuring Pumps, of'which I declare' the following to be a full,clear, and eXa'ct This invention relates to self measuring pumps. y. Oneof the objects of the' invention is to provide means for predeterminingthe quantity of liquid to be discharged.

Another object of the invention is to pro- Speccation of LettersPatent.A Application filed September l5,|1908.

in the county of New seriai- Nb; 453,115.

acting Pself measuring pump, with means for predeterminin the amountofliquid to be ldischarged atter which the discharging orlfoeked fromoperation.'`

invention also comprises an auto matically operating Adevice forlimiting'fthev movement4 of the i returned to pormal orstartmgfpositionin Furthermore, this invention 'comprisesv 'upon eachstroke of the piston in either irection.

vide means for rendering `the 'discharging' means of the pumpineffective after a predetermined quantity has been discharged.

.Another object of the invention is to provide means for automaticallyregulating the With these and incidental objects in view, the inventionconsists in certain. novel fea- The piston 'l which has projectingupward y therefrom a piston above the head 4 of the 5 with which apinion meshes, (see Fig. 6). ing the shaft 7 connects said pinion 6 witha gear 9, withy which-meshes a pinion 10 scf 6 'secured to a shaft 7tures of construction and combinations of parts the essential elementsof which are set forth in appended claims and a preferred form ofembodiment of which is hereinafter described with reference tothedrawings which accompany and form part of this specilication.

, 0f said drawings: Figure l represents a side elevation partly insection of the improved pump. Fig. 2 represents a vertical cylinder ofthe pump and thev pipes connecting the; head and base. Fig. 3 representsa transverse section on line 3-3 of the head ot'ithe; cylinder as shownin Fig. 2. Fig. t r presents a, transverse section on line 4-4 df thebase of the cylinder as shown in Fig. 59@ Fig. 5 reprecured to a shortshaft l()a to which is also' secured an operating handle ll.VVli-il.fthi'sv gearing as shown is so four turns of the operating'handle in the direction o't' the arrow F ig. l), will rotate the shaft 7twice and give the piston l a full stroke upwardly, which will drawwithin the cylinder a half gallon-of liquid and discharge from above thepiston an equal quantity. It is-to be understood that any other ratiomay be used ,without departing from the scope 0f thfe operating handlethe piston will discharge the quant-ity previously dra-wn' in below anddraw into the cylinder a corre-' sponding quantity above said piston,`ashere- VJ. sents an enlarged side elevation ot 4the upper inafter fullydescribed.

part ot the pump looking' in the opposite direction trom l4`i'g."1. Figfrepresents a vertical section taken on line (i-G of Fig. 5. Fig. 7represents :in elevation-of the upper part of the automaticallyoperating linger shaft and coperating mechanism, a p art of which isshown in section Fig 8 represents a side elevation partlyin section .ofthe mechanism shown 1n Fig. 7;,an'd some additional parts. Fig 9represents a detail perspective of the locking mechanism for theDescribed in general terms this invention The above described gea-ringand handle are suitably mountedin tending upwardly from piston, aportion ofsaid frameiwork beingf supported by .a post'lalso extendingupwardly from lthe head- 4f. This frame work' 12. acts as a vguide forthe rack plate 5. T hej `cylinder 2 is mounted in a base 14 havin'gj twoindependent and separate inlet chambers the head 4 ofjthe suction *pipe18 enters. the inlet chamber 15. while an, elbow '190i' said pipe e`nters, -th e chamber 16 of the base. The head: '4 is divided into onel inletlchamber '20-'and one Patented Apr. 5,' 1910.

means is automatically rendered ineii'ective" scharging means' orpiston, so thatsaid` discharging means will be dischargin-g vapredetermined quantity,l y

A sleeve 8 surround- 2 below the pistonthe invention. On the reversemovement of a framework l2 eli- Y means for discharging an equal'{piantity4 -4 rod 3. This rod has secured to itsupper end, cylinder, arackA plate I proportioned that' rack plate, 5 and les 15 and 16 andanoutlet=chamber 17,-,` A

outlet chamberA 21. A pipe 22 connects the inlet chambers 15 and 20 ofthe. base and head respectively while a similar pipe 23 .connects theoutlet 'chambers 17 and 2l of the said base and head. Suitable valves 2e[and 25 control the ingress of `the liquid from fthe' base to the headthrough the pipes 22 and 23 respectively, the said valves being providedwith caps 26 screw threaded in the upper. side of the head 4, andthrough which access may be Ahad to said valves. LA faucet 27 isconnected to the outlet chamber of the head and through which the liquidpasses to suitable receptacles .(not shown). 4

When the pistoni isy raised, as previously described, the vacuum createdthereby will raise a valve 28 mounted in the chamber 1G,

Vand draw the liquid through, elbow 19 into said cham-ber from whence itpasses into the "cylinder through a port hole 29, the liquid in thecylinder above thepiston being forced through an opening in the head 4cinto the "outlet chamber 21 and thence through' the faucet27.rIhisopening in said head is conT trolled by a valve 3l (sce Fig. 3)which issirnilar t0. the valves 24: and 25, it being un-A derstood thatwhen the valves 2S and l1 are opened, the valves 2e and are closed, andwhen the latter valves are opened, theI former are closed. Upon thedownward movement of the piston, the liquid previously drawn in' by theupward movement of said piston will be `forced through a port hole 1Tinto the and gear wheel.

chamber 17 of the base 14 and thence through a port hole 1'?b and pipe23 tothe discharge chamber'21 of 4the head 4;, the vliquid at the sametime being drawn into the cylinder above the pisto'nthroughl the pipe18,1cl'iamber 15, pipe 22, chamber 20 and a port hole 20,

vReferring''now to Figs. 5 and 6, the means for predetermining thequantity tobe dis charged. will be described: Loosely mounted upon theopposite end of the shaft 7, from. which the gear li) is secured, is aknob l32y provided with a pointer' 33, which plays `over a c -al 34,.the latter being suitably secured within a ng $55 altaehed. tothe frame'I'i`his l-:nob 32 is secured to a short (3- surrouuding the sha'lt, theinner slr-fevehaving fast l-herc'to a gear f t() sleevt in Fig. 5, untilthe pointer Sill points to the wardly through means minicral 5. Now uponturning the handle 11in the direction 'ol the arrow (Fig'1), thepistoniA andrack 5 will be raised upol' the previously dears'ryAVAILABLE: corr' l ssaber :spring pressed one way pawl 4:3 carriedby;

Vshown in Fig. 5 by a light coil springtal` .be hereinafter described,`it. `is es..

two complete reciprocatious of the piston,noy

videdfwith a single tooth 47, (see Figs. 6,7 d3@ l scribed gearing.-Projecting lateral1yfri.mf[ the rack 5 are-two pins 39, .'(see Figs, 5and 6), which, as the said rack moves upwardly? y engage .with a bevel.vollset 40. extendingwf i fromthe upper end et. alever 41 suitabli'f'. 'iif pivoted as at 4t2 to the frame work 12 and e rock said lever so thatthe lovverend. of same will move forwarr'lly. As the rack descends f bythe reverse movement of the operating y N handle the pins 3S) willagain'engage/the i bevel offset Ll() androck saidlever. Asrtllie lower end ofsaid lever is moved forwardly l the lowerl end oli' the leverllwillengage the teeth ot the gear wheel 37, and rotate thev latter andthe'pointer 33 connected thereto'` backward step by step. Thisoperation' isl f continued until `the pointer reaches zero, I by which.time the five gallons are. ldiss,4k charged. IAfter eaclrrocki'ng ofthe lever by the pins it is returned to the position'j which surroundsthe pivoted point of said lever. vIn this position the pawl 1.3 is freeof the teeth of the gear wheel 37 so the lat- H l l ter may be rotatedwhen. the pointer is moved inpredetermining a new quantity;` "f As thepointerlfl is always moved .iirorie direction durillg the dischargingoperation of the pump, it will be seen that it may bei` moved intheshortest direction'. to predetermine vthe quantity to be discharged,`that is,-` L. if a quantity above five gallonsr isv to be discharged,Mthe pointer 133' may be moved to.- ward the lel't `in Fig; 5 `and forany quantity not exceeding five gallons, t'o the rhg'ht.` The u movementof the p ointer in either direction` unlocks the discharging. means 'asherein-"m` after described'. I `v e 'In single cylinder double "actingpumps without the equalizing rodt' whiclrwill.` i ltial. that.y thepiston be returned to normalfor starting position in. discharginganydesired quantity because less liquid .is di. ",arged upon the upstroke of the piston than .upon L the down strokedue to the'displacementof.' j some of the liquid by the piston rod.v Ilere` ptofore when it `was desired. to discl'iaige quantity which exceeded thatdischargedv b v a' complete 'reciprocation of the pis'lzoiriinfl'f`which did not amount to that dischf'trged by means were provided toautomatically limitthe stroke of the piston se that the li'l'nited freciproca tion of the pistou `would discharge the quantityl exceeding a'complete reciproc tion, and therefore, it is desired to'claiur thisfeature broadly -without regard to -thev character-of the mecl'lahismemployed; Td accomplish this i1-osait, the tollowing mech-i auism 'hasbeen devised: h/[ou11ted-1lpo1i"the e'xtrcii'ie inner-end ofthe sleeve36 andforming a part of the gear 37, is a disk 46 pro- .di 2o The finger57 is 5a a partial rotation.

Upon the movement of the knob 32 to predetermine the quantity to bedischarged, the tooth 47, (Fig. .7), will engage a notch48 in a disk 49,and give the latter with concave portions 5() and -51 which engage'tieperiphery of the disk 46 and said /dis'k t9/"ijs" locked therebyiineither of two positions/ The disk 49 is loosely mounted iniip'n av'stubshaft"52, suitably secured in the frame Work 12, and-is provided with asleeve 53 which carries at its other end a bevel gear 54, the attermeshing with a similar gear 55 fast tothe work l2. `This shaft 56 has a'finger 57, (Fig. l) which, when the pointer is at zero' tands inthe pathof a iiip pawl 58 attache to the lower end of the rack plate locatedapproximately midway the length of said shaft and is only moved out ofthe path ot' the iiip pawi 58 when theshaft 56 is rotated by moving thepointer 33 to indicate a gallon or more. The

timing of the return of the shaft 56 'carrying V50 with 'the base 1.4l

the finger 57 by means of the lever 41,

pawl 43 and intermediate connections, is

quently the piston 1 unless a quantity comprising a half gallon is to bedischarged, in

which case the last upward movement dis-v charges only a quart andthereturn movement an equal quantity, or in other words,

the nger is returned to normal position Just as the last half gallon isto be discharged, the' piston then being in itsupper position when even.gallons are discharged,

4.0 and in its lower 'position when fractions of a of the piston l indischarging a half gallon secured tothe finger' J shaft 56, with whichthe' flip pawl 58 c onis limited by a disk 59 'tacts, while the downwardmovement-of said piston is limited byv its coming into contact- Suitablet-ie rods 60 connect the base and head tosecurely hold them in place. t

The shaft 7 is normally locked and consequently 'the operating handle11, and is released upon the adjustment of the pointer 33 to any desired'quantity in the following manner? The part of the disk 46 secured tothe inner end of the sleeve 36 that is put of the'plane' ofv the disk 49has a V shaped notch 61, (see Figs. 5 and 9) upon its yup-per l side, inwhich rests the rear end cfa pawl 62l pivoted upon a stub shaft` 63projecting from theframework 12. 'This paw] is fast to one end of asleeve 64, which carries at its -65 .other end a pawl 65, the free endof which This disk 49 is providedl upper end of a vertical shaft 15 56,which is guided by the head 4 and .trame ing Vfrom a disk 67 secured tothe shaft`7, and thereby locking the shaft from rotation. When the knob32 is rotated, the disk 46 will also be rotated, camming the free end ofthe pawl 62 upwardly and through means of the sleeve 64 raise the pawl65- out of the path of the lug 66, so that the shaft 7 andthe disk 67may berotated. As the predetermined quantity is discharged the disk 46will have been rotated back to its' normal position, as previouslydescribed, and thc pawls 62 and 65 returnedto their normal positions bygravity or a suitable spring. It is obvious,-that if desired, thepiedetermining' feature of the invention may be used as an indicating orregistering mechanism' to keep account of the quantity of liquid.ldischarged, in which case the locking should befleft oii .and the,figures on the dial arranged so as to progress inthe opposite directionfrom that shown.

Heretofore in double .acting single cylinder piimps where registers havebeen employed to keep track of the quantity of liquid discharged, theyhave been. made to register the. quantity discharged by a com'- pletereciprocation of the up-stroke or the return of the piston. Thisconstruction is faultyfor the reason that if it is desired to dischargea less quantity than that discharged by a complete reciprocation of thepiston, a quantity greater than that discharged would be registered ornone at all.

In some instances,'it is very desirable to discharge the desiredquantity by the continued movement of the operating handlel in of thepiston at the end one directioitbut the great difficulty heretofore insingle' cylinder double acting'self measuring,-pumps has been thatthesame amount of'iquid would'not be dischz-irged upon one=s'ti'okel of thepiston as upon the other, due to the displacement of the liquid abovethe piston by the piston rod. This objection has been overcome by thefollowT ing simple and etiicient means. Extending downwardly from 'thepiston, as shown in Figs. 1 and 2, is a rod 450i the same crosssectional area as the piston rod 3, which displaces the same quantityofliquid below the piston l as the rod 3 does above. The rods 3 and 45pass through suitable packing boxes 68 and 69 which are-mounted upon thehead 4 and tively.

It is to be understood that the dial 34 may be divided into fractions ofagallon representing pints and quarts, or any other quantities desired,as well as the gallon fractions as shown.`

Vvhile the construction of the pump and base-1,4 of the cylinder respeclthe equalizing rod have been specifically described, they are notclaimed except in combinatonr with theI other elements'forming ine:lubject matter of this application, as Z i h er lornied the` basis caion filed February of a divisional appli- 15, 1909, Serial No.

" vlhile the 'form of mechanism herein shown' and described admirablyadapted to' fulfil the objects primarily stated, 'it is to be understoodthat itis not intended to online/'tlm .invention to the one form of em'.blidii'nent -herein disclosed, for it is' susceptible of embodiment invarious forms all coming within the scope oilE the claims which. follow,i

1What is claimed is: v l. lua sell. measuring pump, the combina# tionwith n ieans-foroperating said pump to l discharge liquid therefrom, ofmeans for predetermining the quantity to be discharged, meansfor,automatically rendering the operating means' inelieetive when Ithepredetermined uantitv has been,discharo'ed and n ieans automaticallyactuated during the operation et the operating means `lor limiting themovement of the latter.

In a sell? measuring pump, the combinationfivith means for (.)peralingsaid' pump to discharge .liquid theret'i'oni. oii means tor.

p redetermining?r the quanlity to be-- dis-- charged, and means lorautonial'ieallylock un;- the opera ling means when the predeterminedquanlitphas been discharged.

$5. .In asel'l measuring pump, lhecomlnna.-

'tion with. means 'tor-operating said pump to discharge liquidlheretroni, or an adpislable .lev1ce'for predclermnnng the quanlny tobe.

discharged, means .forautomatically rendering the Operating' meansmell'ecl'nfe#when the predetcrminial quantity' has laen dis# charged,and means automatreally actuated during the operation ol.'4 theoperating means flor-limitleg the movement oli the latter.

" il. In a sell measiirini` pump, lhe eombinzn tion with means 'loropera( Ing' said pump todischarge liquid therefrom, of an vindiealinr@.mechanism con'iprismg adial and poniter tor 1i redelierminnig theipianiily lo .be discharged, n'ieansfilor aulon'iatieally rendering theoperatingmeans inell'ective when tho predetermined quanlityhas beendischarged, and `1neans autol'mil.ically actuated during the operationof the operating` means' 'For limiting;l the moveimmly oli the lallerj5. n a self measuring pun'ip, the conibina- ,tion-with means foroperating lsaid pump te kdlschargge liquid lherel'rom, ot an nnlnfatlngmeehai'nsni comprising a dia and 'pointer ,lor lneflel'ei'nlining ythequantity `td be dis-- charged, and means ilior,automatically 'toekfAamener tion` with a..` normally locked operating 85@ unlocking theoperating mechanism, a lever BEST AVAILABLECOBY l i l 'l i i i l*l l up.to be discharged and' unlocking the operat` f ,l ing mechanism, thesaidlocking means being y@ arranged to automatically lock theoperatingmechanism `when the predetermined quantity i has beendischarged. i .70 7. In a self measuring' pump, thecoinbina- 'i tionwith a normally locked operating` mechanism fordischarging liquidtherefrom, of an indicating meelninismcomprisingla dial and pointer forpredetermining the 75 quantit)Y to be discharged, a' cam diskconnecteddothc indicator mechanism forun-1 lockingthe 'operatingmechanism, means for operaiing the indicating mechanismduring thedischarging;` of the liquid and' a'pa\vl"80` for lacking said operatingmechanism when i the predetermined quantity hasbeen" discharged. i

S. 'ln a eelt measuring pump, the combinamechanism for discharein 0'.lic uid therefrom. b a

dial and pointer, the latter being,- `constructed to be moved over thedial for predetermining the quantity to be disclnirged',` acam disk'g0""connected to the indicating 4mechanism4 for actuated by the operating,`mechanism for returning `the pointer of the indicating L mechanismduring, the discharging of the-95 liquid, and a pawlfor locking theoperating mechanism when the predetermined 4quantity. f has beendiseharged` i v i Sl, `ln a self measuring pump, the `emubina-y tionwith means for operati-ng` said pum-p 100: i to discharge liquidtherefrom, of means'r governed by the ope atingmea-nsffor fanto-4matically controlling` the extent of:1` n'ove1 ment.ofthelatter; o

.1.0. ln a self me'asuringpump, the-combi 105 nation with means foroperating said pump to discharge liquid therefrom, of means fori-3medetermin-ing v`the. quantity to be 'dis-l eharged, amlmeans connectedto tlie`predetei-mining meansand governed by the opel ating vmeansforautomatically controlling i the etent of movement of' thelatt'er, ll..ln ay selfmeasuring pump, the combin ation with means Yfor operating'saidump" f lo fliseharge liquid therefro1n,'of a1 i inc mat- 115" f ing'mechanism,for predetermining,` the quantiiy lo be diseliarged, and meansconnected f lo the indicating' .mechanism land governed ff by theoluxrating,l means 'for automatically; controllingY the exlent'ofmovement the 120 latter. I i i" v l l2. ln a self measuring' pump,thecombiaV nation with'a, reeiprocatory,piston, of means for normallyvlocking said piston'ffrom oper!` ation, a n'ianipulative device 'forunlo`c'kir'1ig' 125'v said piston, andnieans controlled byefsaid vmanipulative device for eontrollingii the slroli'e olisaid pisil'inf j LL13. l'n a self measuring pump,in combi i nation a reeiprocatorypietonlor dischargel .1130" ing a certain quantity of liquid upon each eratingmeans therefor,

reciprocation, and o said operating and means contro ed by l means forautomatically limiting the reciprocatory movement of the piston so as todischarge a less quantity.

14. In a self measuring pump, thecombination With a reciprocatory pistonfor discharging a certain quantity of liquid upon each reciprocation, anoperating means therefor and aflnger rod controlled lby said operatingmeans for automatically limiting the reciprocatory movement of thepiston so as to discharge a less quantity.

15. In a se f measuring pump, the combination with a reciprocatorypiston for discharging a certain quantity of liquid uponeachrreciprocati'on, means for predeterminv lingthe number ofreciprocations of said piston, and means for automatically limitingpiston;` y

16. In a self measuring pump, the combination With means for operatingsaid pump p the., last reciprocatory movement ofvsaid to dischargeliquid therefrom, of means adjustable in different directions forpredetermining the quantityA to be discharged. and means forautomatically rendering the operating means ineffective when thepredetermined quantity has been discharged.

17. In aself measuringA pump, the combination Withmeans for operatingsaid pump to discharge liquid-therefrom, of means adjustable indifferent directions for predetcrf mining the quantity to be discharged,and

means for automatically locking the operating means when thepredetermined quantity has been discharged. Y

I l 18. In a self measuring pump, the com "se, natlon With means foroperating said pump tra the predetermined quantity has-been discharged.1

20. In a self measuring pixmp, the` combination With a cylinder, of abase and head therefor, operating means for discharging liquid from thecylinder through the base and head, and means operated automaticallyduring the operation of the operating means for limitingthe movement ofthe operating means.

21. In a self measuring pump, the combination With a cylinder, of a baseand .head therefor, a piston for discharging liquid from thecylinderthrough the base and head,

operating means for the piston, and a. finger rod operated automaticallyduring the operation of the operating means for limitingthe stroke ofthe piston.

In testimony whereof I aix my signature in thepresence of two witnesses.I CHARLES F. HATMAKER.

l/Vitnesses: Y

A. C. I-IARNED, J. F. KENNEY.

